I recently had my frigidaire dishwasher stop working, and Er started flashing on the panel. I replaced the control panel and then the panel started blinking with a 37 and a 38 when the latch is closed. After a phone call to customer service, and the suggestion to shut power off for 10-15 minutes, it now flashes with an 80 and 81 when closed. Any ideas on what to do next?